Gulliver 55

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0.78 UTI
0.5
CN
0.91
Cdens
1.0
CC3
0.75
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 50
Radius (P>50% members) 3.9 [arcmin]
  • CN 0.5 Moderately populated
  • Cdens 0.91 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.75 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Gulliver 55 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is well-studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Relatively close Low extinction Near-solar metallicity Old Contains BSS

Almeida et al. (2025)
Mass determination: worst fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Gulliver 55 in: SciX Simbad
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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 297.83 18.664 0.343 -2.026 -2.542 24.421
Li et al. 2025 297.833 18.661 0.369 -2.043 -2.53 –
Hu & Soubiran 2025 297.828 18.662 – – – –
Almeida et al. 2025 297.832 18.65 – – – –
Hunt & Reffert 2024 297.83 18.675 0.346 -2.061 -2.597 24.816
Cavallo et al. 2024 297.828 18.662 0.348 – – –
Hunt & Reffert 2023 297.83 18.675 0.346 -2.061 -2.597 24.816
Rain et al. 2021 297.833 18.661 0.369 -2.043 -2.53 –
Dias et al. 2021 297.832 18.65 0.368 -2.062 -2.52 24.333
Cantat-Gaudin et al. 2020 297.833 18.661 0.369 -2.043 -2.53 –
Cantat-Gaudin & Anders 2020 297.833 18.661 0.369 -2.043 -2.53 –
Monteiro & Dias 2019 297.833 18.661 – – – 2.385
Soubiran et al. 2018 297.833 18.661 – – – 24.21
Cantat-Gaudin et al. 2018 297.833 18.661 0.369 -2.043 -2.53 –

💡 Note: The UCC values are estimated from its identified members.

Reference Year Dist [kpc] Av [mag] DAv [mag] Age [Myr] [Fe/H] [dex] Mass [Msun] Bfr BSS
Li et al. 2025 2.40 1.29 – 1979 -0.364 – – –
Hu & Soubiran 2025 – – – – -0.130* – – –
Almeida et al. 2025 2.52 0.86 – 2382 – 74 – –
Hunt & Reffert 2024 – – – – – 373* – –
Cavallo et al. 2024 2.37 1.05 – 741 0.400 – – –
Hunt & Reffert 2023 2.65 1.16 1.24 571 – – – –
Rain et al. 2021 2.51 0.87 – 1585 – – – 3
Dias et al. 2021 2.52 0.86 – 2382 0.112 – – –
Cantat-Gaudin et al. 2020 2.37 0.92 – 1995 – – – –
Cantat-Gaudin & Anders 2020 2.51 – – – – – – –
Monteiro & Dias 2019 2.34 0.88 – 1614 0.048 – – –
Soubiran et al. 2018 2.51 – – – – – – –
Cantat-Gaudin et al. 2018 2.51 – – – – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization
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Gulliver 55 UCC
Gulliver 55 HUNT23
Gulliver 55 CANTAT20
Galactocentric position diagram